DB MODEL
https://www.drawdb.app/editor?shareId=b88dd314ba89854bbc0daef4af88161e - Postgres v2
https://www.drawdb.app/editor?shareId=4457655b50bb3923aeadb000aa2967de - PROTOTYPE
https://www.drawdb.app/editor?shareId=50b8b758a884ee66a29338e9152c928b - first